Ireally need on this question and show your work i will mark brilliant

the population of a city is 645 people less than it was five years ago the current population is 13,500 what was the population five years ago?

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

Taylor wants to paint his rectangular deck that is 41 feet long and 24 feet wide. a gallon of paint covers about 350 square feet. how many gallons of paint will taylor need to cover the entire deck? round your answers to two decimal places when necessary.